For eyelashes this phase lasts 30-45 days. It will then go into its telegon phase 'Wresting phase' which will last Aproxx 100 days before falling out and re-growing. Eyelashes are falling out pretty much every day too start a new cycle of growth. read more
It is normal for one or two lashes to fall out per day, because your hair is constantly renewing, but they should also grow back over time. This is considered your normal lash cycle. If not, you may want to consult with a doctor about why you're losing eyelashes at an abnormal rate. read more
So, does smoking cause your eyelashes to fall out, haha, well probably if you light your cig on the gas hob like I used to do and you singe them. Still, saves on mascara. Of course it's just a nonsense to get you to click on that link there at the bottom. read more